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You cannot start the EMC or the EMS in an Exchange Server 2010 Service Pack 1 environment
Article ID: 2575005 - View products that this article applies to.
You cannot start the Exchange Management Console (EMC) or the Exchange Management Shell (EMS) in a Microsoft Exchange Server 2010 Service Pack 1 (SP1) environment. Additionally, you receive the following error message:
Additionally, the following event is logged in the Application log on the Exchange Server 2010 server:
The type initializer for 'Microsoft.Exchange.Configuration.Tasks.Task' threw an exception.
Log Name: Application
This issue occurs because an InvalidCastException exception occurs when the Exchange server reads the CustomerFeedbackEnabled flag. The exception causes the w3wp.exe process to crash.
To resolve this issue, install the following update rollup:
(http://support.microsoft.com/kb/2608646/ )Description of Update Rollup 6 for Exchange Server 2010 Service Pack 1
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the EMC, visit the following Microsoft website:
General information about the EMCFor more information about the EMS, visit the following Microsoft website:
General information about the EMSFor more information about the CustomerFeedbackEnabled flag, visit the following Microsoft website:
General information about the CustomerFeedbackEnabled flag